Will a factory reset screw up my NFL Mobile app status??Support

I'm sure a lot of you know that if you installed the NFL Mobile app on or before "x" date then you get it free for the season. After Froyo my battery life has left a lot to be desired so I want to try a factory reset. If I do it, will I lose my free NFL Mobile app for the season? Or will my phone "know" when I originally installed it? Any help would be appreciated, thanks!

i called vzw and made sure they knew i was going to perform a reset. asked the rep to make sure to note on my account that i was grandfathered in. so far so good. used it sunday on 3g and it worked great. then went into qwest field and it stopped working because of blackout rules. still cannot figure that part out. to my surprise they gave free fanvision tv's to season ticketholders so now i can watch all the games inside the stadium free. or watch nfl redzone. or switch to my hearts desire. now i'm covered in or out of the stadium. gooooo seahawks.